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<H1 class="no-header">curs_printw 3x</H1>
<PRE>
<STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>                                                <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>




</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
       <STRONG>printw</STRONG>, <STRONG>wprintw</STRONG>, <STRONG>mvprintw</STRONG>, <STRONG>mvwprintw</STRONG>, <STRONG>vwprintw</STRONG>, <STRONG>vw_printw</STRONG> - print
       formatted output in <STRONG>curses</STRONG> windows


</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>

       <STRONG>int</STRONG> <STRONG>printw(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
       <STRONG>int</STRONG> <STRONG>wprintw(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
       <STRONG>int</STRONG> <STRONG>mvprintw(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
       <STRONG>int</STRONG> <STRONG>mvwprintw(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
       <STRONG>int</STRONG> <STRONG>vw_printw(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>va_list</STRONG> <EM>varglist</EM><STRONG>);</STRONG>

       /* obsolete */
       <STRONG>int</STRONG> <STRONG>vwprintw(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>fmt</EM><STRONG>,</STRONG> <STRONG>va_list</STRONG> <EM>varglist</EM><STRONG>);</STRONG>


</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
       The <STRONG>printw</STRONG>, <STRONG>wprintw</STRONG>, <STRONG>mvprintw</STRONG> and <STRONG>mvwprintw</STRONG> routines are  analogous  to
       <STRONG>printf</STRONG>  [see <STRONG>printf(3)</STRONG>].  In effect, the string that would be output by
       <STRONG>printf</STRONG> is output instead as though <STRONG>waddstr</STRONG> were used on the given  win-
       dow.

       The  <STRONG>vwprintw</STRONG>  and  <STRONG>vw_printw</STRONG>  routines  are  analogous to <STRONG>vprintf</STRONG> [see
       <STRONG>printf(3)</STRONG>] and perform a <STRONG>wprintw</STRONG> using a variable argument  list.   The
       third  argument  is a <STRONG>va_list</STRONG>, a pointer to a list of arguments, as de-
       fined in <STRONG>&lt;stdarg.h&gt;</STRONG>.


</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
       Routines that return an integer return <STRONG>ERR</STRONG> upon failure  and  <STRONG>OK</STRONG>  (SVr4
       only  specifies "an integer value other than <STRONG>ERR</STRONG>") upon successful com-
       pletion.

       X/Open defines no error conditions.  In this implementation,  an  error
       may be returned if it cannot allocate enough memory for the buffer used
       to format the results.  It will return an error if the  window  pointer
       is null.

       Functions  with  a  "mv"  prefix  first perform a cursor movement using
       <STRONG>wmove</STRONG>, and return an error if the position is outside the window, or if
       the window pointer is null.


</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
       While <STRONG>printw</STRONG> was implemented in 4BSD, it was unused until 4.2BSD (which
       used it in games).  That early version of curses was before the ANSI  C
       standard.   It  did not use &lt;varargs.h&gt;, though that was available.  In
       1991 (a couple of years after SVr4 was generally available,  and  after
       the  C  standard  was published), other developers updated the library,
       using &lt;stdarg.h&gt; internally in 4.4BSD curses.  Even with this  improve-
       ment, BSD curses did not use function prototypes (or even declare func-
       tions) in the &lt;curses.h&gt; header until 1992.

       SVr2 documented <STRONG>printw</STRONG>, <STRONG>wprintw</STRONG>  tersely  as  "printf  on  <EM>stdscr</EM>"  and
       tersely as "printf on <EM>win</EM>", respectively.

       SVr3  added  <STRONG>mvprintw</STRONG>,  and <STRONG>mvwprintw</STRONG>, with a three-line summary saying
       that they were analogous to <STRONG>printf(3)</STRONG>, explaining that the string which
       would be output from <STRONG>printf(3)</STRONG> would instead be output using <STRONG>waddstr</STRONG> on
       the given window.  SVr3 also added <STRONG>vwprintw</STRONG>, saying that the third  pa-
       rameter  is a <STRONG>va_list</STRONG>, defined in &lt;varargs.h&gt;, and referring the reader
       to the manual pages for <EM>varargs</EM> and <STRONG>vprintf</STRONG> for detailed descriptions.

       SVr4 added  no  new  variations  of  <STRONG>printw</STRONG>,  but  provided  for  using
       &lt;varargs.h&gt; or &lt;stdarg.h&gt; to define the <STRONG>va_list</STRONG> type.

       X/Open  Curses  added  <STRONG>vw_printw</STRONG>  to replace <STRONG>vwprintw</STRONG>, stating that its
       <STRONG>va_list</STRONG> definition requires &lt;stdarg.h&gt;.


</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
       In this implementation, <STRONG>vw_printw</STRONG> and <STRONG>vwprintw</STRONG> are equivalent, to  sup-
       port legacy applications.  However, the latter (<STRONG>vwprintw</STRONG>) is obsolete:

       <STRONG>o</STRONG>   The  XSI  Curses  standard, Issue 4 described these functions.  The
           function <STRONG>vwprintw</STRONG> is marked TO BE WITHDRAWN, and is to be  replaced
           by a function <STRONG>vw_printw</STRONG> using the <STRONG>&lt;stdarg.h&gt;</STRONG> interface.

       <STRONG>o</STRONG>   The  Single Unix Specification, Version 2 states that <STRONG>vw_printw</STRONG>  is
           preferred  to  <STRONG>vwprintw</STRONG>  since  the   latter   requires   including
           <STRONG>&lt;varargs.h&gt;</STRONG>,  which  cannot be used in the same file as <STRONG>&lt;stdarg.h&gt;</STRONG>.
           This implementation uses <STRONG>&lt;stdarg.h&gt;</STRONG> for both, because  that  header
           is included in <STRONG>&lt;curses.h</STRONG>&gt;.

       <STRONG>o</STRONG>   X/Open  Curses, Issue 5 (December 2007) marked <STRONG>vwprintw</STRONG> (along with
           <STRONG>vwscanw</STRONG> and the termcap interface) as withdrawn.


</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
       <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_addstr.3x.html">curs_addstr(3x)</A></STRONG>, <STRONG><A HREF="curs_scanw.3x.html">curs_scanw(3x)</A></STRONG>, <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>,
       <STRONG>printf(3)</STRONG>, <STRONG>vprintf(3)</STRONG>.



                                                               <STRONG><A HREF="curs_printw.3x.html">curs_printw(3x)</A></STRONG>
</PRE>
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<ul>
<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-HISTORY">HISTORY</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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